condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 0.0 0.0 0.0 Petiole 0.0 0.0 0.0 Crozier 0.23171016666666666 0.0 0.606949 Rhizome 0.5647628666666666 0.0688897 1.55145 Root 7.94317 2.3397 15.8166